10197980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 23477664

約数和(自身を除く): 13279684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 643, 793, 1220, 1286, 1586, 2572, 3172, 3215, 3965, 6430, 7930, 8359, 12860, 15860, 16718, 33436, 39223, 41795, 78446, 83590, 156892, 167180, 196115, 392230, 509899, 784460, 1019798, 2039596, 2549495, 5098990, 10197980]

約数ペア:

[(1, 10197980), (2, 5098990), (4, 2549495), (5, 2039596), (10, 1019798), (13, 784460), (20, 509899), (26, 392230), (52, 196115), (61, 167180), (65, 156892), (122, 83590), (130, 78446), (244, 41795), (260, 39223), (305, 33436), (610, 16718), (643, 15860), (793, 12860), (1220, 8359), (1286, 7930), (1586, 6430), (2572, 3965), (3172, 3215)]